Specification of Richard Archibald Brooman : inhaling tubes.

  • Brooman, Richard Archibald.
Date:
1853
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Richard Archibald Brooman : inhaling tubes. Source: Wellcome Collection.

    5/10 (page 3)
    Brooman s Improvements in Inhaling Tubes. grant unto me, the said Richard Archibald Brooman, Her special licence that I, the said Richard Archibald Brooman, my executors, administrators, and assigns, or such others as I, the said Richard Archibald Brooman, my executors, administrators, and assigns, should 5 at any time agree with, and no others, from time to time and at all times thereafter during the term therein expressed, should and lawfully might make, use, exercise, and vend, within the United Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for “ Improvements in Inhaling Tubes,” 10 communicated to me by a foreigner residing abroad, upon the con¬ dition (amongst others) that I, the said Richard Archibald Brooman, by an instrument in writing under my hand and seal, should par¬ ticularly describe and ascertain the nature of the said Invention, and in what manner the same was to be performed, and cause the same to 15 be filed in the Great Seal Patent Office within six calendar months next and immediately after the date of the said Letters Patent. NOW KNOW YE? that I, the said Richard Archibald Brooman, do hereby declare the nature of the said Invention, and in what manner the same is to be performed, to be particularly described and ascer- 20 tained in and by the following statement thereof, reference being had to the drawing hereunto annexed, that is to say: This Invention has relation to the construction of inhaling tubes for expanding the chest and exercising the lungs by means of respiration. The theory on which the operation of these instruments is based is well 25 known. It has been found to increase the beneficial effect to exhale the breath under more pressure than is exerted in the act of inhaling it; and to effect this is the object of these improvements. The figure of the drawing annexed represents an inhaling tube, as thus improved. a., is a short tube of silver or other non-corrosive metal, which forms 30 the mouth piece. At the end of this is a valve chamber, consisting of a short cylinder, open at both ends. One end forms a seat for a poppet valve c, the guide stem of which plays within a socket in a cap d, which is attached at the opposite end of the said cylinder; the cap being fitted like a stopper, so as to be readily taken out and 35 replaced. Within this cap is a small orifice e; and it is through this